Species
Valid Extinct

Styxosaurus snowii

(Williston 1890)

No Wikipedia summary available.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
4
Group
Sauroptérygiens
Carnivore aquatic, depth=surface Marine
🦴
PBDB ↗
Classification
Sauropterygia Suborder
›
Plesiosauria Order
›
Plesiosauroidea Superfamily
›
Elasmosauridae Family
›
Euelasmosaurida Unranked clade
›
Elasmosaurinae Unranked clade
›
Styxosaurus Genus
›
Styxosaurus snowii Species
Fossil sites 4 geolocated sites
Distribution
Top countries
🇺🇸 United States
4
Geological formations
Niobrara
2
Pierre Shale
2
Temporal distribution
Campanian (83.6–72.2 Ma)
2
Santonian (85.7–83.6 Ma)
2
Synonyms (1)
Alzadasaurus pembertoni subjective synonym of Styxosaurus snowii
Bibliography
Original description
S. W. Williston. 1890. Structure of the plesiosaurian skull. Science 16(405):262 DOI ↗
Bibliography (4)
D. J. Cicimurri and M. J. Everhart. 2001. An elasmosaur with stomach contents and gastroliths from the Pierre Shale (Late Cretaceous) of Kansas. Transactions of the Kansas Academy of Science 104(3-4):129-143 DOI ↗
S. P. Welles and J. D. Bump. 1949. Alzadasaurus pembertoni, a new elasmosaur from the Upper Cretaceous of South Dakota. Journal of Paleontology 23(5):521-535
S. W. Williston. 1906. North American plesiosaurs: Elasmosaurus, Cimoliasaurus, and Polycotylus. The American Journal of Science, series 4 21:221-236 DOI ↗
S. W. Williston. 1890. A new plesiosaur from the Niobrara Cretaceous of Kansas. Transactions of the Kansas Academy of Science 12:174-178 DOI ↗